基于DSP的新型汉字NAVTEX系统接收机的设计

Design of a new type chinese character NAVTEX receiver based on DSP

介绍了NAVTEX接收机的工作原理与信号特点,提出采用软件无线电技术和DSP技术进行NAVTEX接收机的设计思路,所设计的接收机采用数字滤波解调与自检等技术,在系统功能方面具有参数调整方便与易升级的特点。

In this paper, the principle of a NAVTEX receiver and the character of its signal are introduced. The idea of using DSP to design new-typed NAVTEX receiver and using software radio algorithm to make the receiver software are utilized. The capability and function of this receiver are improved by making use of DSP to realize digital filter demodulation and self-detected technology. In the aspect of system functions, its parameter can be adjusted easily and also can be updated easily.